8478479893 has 16 divisors (see below), whose sum is σ = 9390560256. Its totient is φ = 7605380160.

The previous prime is 8478479879. The next prime is 8478479897. The reversal of 8478479893 is 3989748748.

It is a cyclic number.

It is not a de Polignac number, because 8478479893 - 2⁵ = 8478479861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478479897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71628 + ... + 148618.

It is an arithmetic number, because the mean of its divisors is an integer number (586910016).

Almost surely, 2^8478479893 is an apocalyptic number.

It is an amenable number.

8478479893 is a deficient number, since it is larger than the sum of its proper divisors (912080363).

8478479893 is a wasteful number, since it uses less digits than its factorization.

8478479893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77244.

The product of its digits is 97542144, while the sum is 67.

The square root of 8478479893 is about 92078.6614422690. The cubic root of 8478479893 is about 2039.1037884600.

The spelling of 8478479893 in words is "eight billion, four hundred seventy-eight million, four hundred seventy-nine thousand, eight hundred ninety-three".